NPTEL Plastic Waste Management Week 5 Assignment Answers 2025
1. Which of the following toxic compound/s from plastic pollution has have the property of
mimicking estrogen?
a. Styrene
b. Bisphenol A
c. Nonyl phenol
d. Both (b) & (c)
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2. Through which of the following process(es) plastic waste has an effect on the marine life?
a. Ingestion
b. Entanglement
c. Bio magnification
d. All the above
Answer :-
3. Which forms the largest source of ocean micro plastics worldwide as per city research, World
Atlas 2018?
a. Synthetic textiles
b. Car tyres
c. City dust
d. Marine coatings
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4. Consumption of waste plastic mistakenly as food by fish and other wildlife which leads to their
death is termed as?
a. Entanglement
b. Digestion
c. Ingestion
d. None of the above
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5. Which is the largest of the five offshore plastic accumulation zones in the world’s oceans?
a. Indian Ocean Gyre
b. North Atlantic gyre
c. Arctic gyre
d. Great pacific garbage patch
Answer :-
6. The reason(s) for plastic ingestion by wild life is/are?
a. Plastic microbeads resemble fish eggs and are often eaten by jellyfish, egg-eating fish and filter feeders
b. Seabirds that skim the ocean surface while flying, such as albatrosses, cannot differentiate floating food from litter.
c. Sonar of some animals can confuse plastic for squid and jellyfish.
d. All of the above
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7. Increase in concentrations of contaminants through transfer within a food web can be termed
as?
a. Eutrophication
b. Bio magnification
c. Bio stimulation
d. Bio remediation
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8. Styrene monomers are found in which types of plastic
a. LDPE
b. HDPE
c. PS
d. PVC
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9. What are the reason(s) for which fishing gear can become marine litter
a) Fishing gear is abandoned
b) Fishing gear is discarded
c) Fishing gear is lost
d) All of the above
Answer :-
10. Plastic pollution promotes mosquito breeding
a. True
b. False
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11. Fishing Vessels are also a source of marine pollution.
a. True
b. False
Answer :-
12. According to WWF report 2018, more than 1% of total plastic floats on the surface.
a. True
b. False
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13. Entanglement of discarded plastics can cause death of marine animals by drowning,
suffocation, strangulation, or starvation.
a. True
b. False
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14. Dioxins are carcinogenic and a hormone disruptor and persistent, and they accumulate in our
body-fat and thus mothers give it directly to their babies via the placenta.
a. True
b. False
Answer :-
15. PHALATES are commonly cited plastic additives.
a. True
b. False
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